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Last month, Chinese researchers showed that quantum communication between Earth and space is possible, and now they have used the tech to send a photon to space using quantum teleportation.
Quantum teleportation is a crucial requirement to create a quantum Internet that allows quantum computers to communicate between themselves. The overuse of the word quantum in the previous sentence is not to make it sound complex. Quantum computers are computers that can use the laws of quantum mechanics to perform calculations faster than even the best supercomputer we can build – and at a fraction of the size.
“Long-distance teleportation has been recognized as a fundamental element in protocols such as large-scale quantum networks and distributed quantum computation,” the research team wrote in the paper , which is yet to be peer-reviewed. “However, the previous teleportation experiments between distant locations were limited to a distance on the order of 100 kilometers, due to photon loss in optical fibers or terrestrial free-space channels.”